On 12/4/25 08:50, Franz von Dardel wrote:
> Since I moved my MacOS to Tahoe, POVRay does not work any more. I am constantly
> getting the message: Cannot create render state output file. Does anyone have a
> fix for this?
> 

I'm also not an Apple OS user, but...

1) If you are using a v3.8 based version of POV-Ray, a workaround should 
be the command line flag '-cc' or the ini command 
'create_continue_trace_log=off'.

2) Another thought. Perhaps one or more state files existed prior to 
your OS upgrade due prior aborts for the scene. If so, maybe something 
with ownership or permissions is different enough after the upgrade 
POV-Ray cannot over-write the existing state file for a scene? This a 
wild guess - as probably you've tried multiple scenes.

Bill P.

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